package Homework;

import java.util.Scanner;

public class positive {
    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);
        int num = scan.nextInt();

        if (num > 0){
            System.out.println("+");
        }else if (num < 0){
            System.out.println("-");
        }else if (num == 0){
            System.out.println(0);
        }else {
            System.out.println("输入错误请重新输入");
        }


    }
}
